Difi Advance A1 Gauge Volt: 10-15V Water Temp Celsius: 20-120 Water Temp Fahrenheit: Oil Temp Celsius: 50-150 Oil Temp Fahrenheit: Oil Press BAR: 0-10 BAR Oil Press PSI: 0-140PSI RPM: 0-9000RPM VACUUM: -1-0.2BAR BOOST BAR: -1-2BAR BOOST PSI: -30-30PSI BOOST 3BAR: -1-3BAR EXT TEMP: 200-1100 AIR FUEL RATIO: 10-20 Fuel Press BAR: 0-6BAR Fuel Press PSI: 0-80PSI Trans Temp: 80-260 1, This gauge work with Stepper motor and electronic sensor. 2, Stepper Motor is more fast more accurate. 3, Turbo Gauge, Vacuum Gauge, EXT Temp Gauge, Oil Press Gauge, Volt Gauge, Oil Temp Gauge, Water Temp Gauge, Tachometer & Vacuum Gauge are available. 4, Gauge dials are invisible while the ignition switch is off. Once the ignition switch is turned on, a clear display appears with white LED illumination. A red emitting needle pointer increases visibility. 5, The illumination color can be adjustable from white and amber red 6, Double Warning function by a meter"'"s LED lamp and a beep 7, only for 12V vehicles 8, work without the control unit 9, This is universal meter gauges that can fit any car 10, Gorgeous Opening mode and Ending model. Functions: 1.Peak Setting 2.Color Choose 3.Bright Level 4.Buzzer Type 5.Buzzer Level 6.Open Ceremonies 7.Warning Setting 8.Zero position adjustment Package including: 1 *Gauge 1* HolderSet 1 * Sensor (Water temp, Oil Temp, Oil Press, Vacuum, Trubo, Ext Temp, Fuel Press, Trans Temp) 1 * Bolts Pack 1 * English instruction